Material with Digital “Fingerprints” Could Help unghost “Ghost Guns” Researchers embed digital ‘fingerprints’ into 3D printed parts — tech may make future ghost guns more traceable – Tom’s Hardware Netanel Raviv and a team at the McKelvey School of Engineering (part of Washington University in St. Louis) are continuing to develop a way to embed traceable digital ‘fingerprints’ into 3D-printed objects. Initially reported by 3D Printing Industry, the markers are designed in a way to be detectable, even if the printed object has been broken, because they can be identified with just a fragment of the object. Depending on the fingerprint, information such as what printer was used and when the object was created can be embedded in the print. One of the biggest practical use cases for this development is, of course, forensics. Traceable fingerprints are crucial for helping law enforcement track ghost gun manufacturing operations. We reported on a similar approach just a few months ago in which police were able to identify markers left behind when printing.
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